{
  "vad_prob": 0.91,
  "speech_ms": 900,
  "silence_ms": 0,
  "energy": 0.82,
  "stt_confidence": 0.84,
  "stable_chars": 42,
  "partial_chars": 52,
  "stable_word_count": 8,
  "words_since_pause": 6,
  "tts_playback_ms": 2300,
  "tts_echo_risk": 0.12,
  "time_since_user_started_ms": 0.0,
  "time_since_assistant_started_ms": 2300,
  "recent_endpoint_candidate": 0,
  "vad_active": 1,
  "ends_with_punctuation": 0,
  "ends_with_continuation": 0,
  "required_slots_filled": 0,
  "assistant_speaking": 1,
  "backchannel_like": 0,
  "expected_answer_type": "open_ended"
}